Improvement in cultivators



' G. A. ERICKSON.

Cultivator.

Patented Sept. 1, 1853.

N- PETERS. Fnomurncanp PATENT OEEICEo G. A. ERICKSON, OF SWEEDAEND, IOWA.

IMPROVEM ENT lNf CULTIVATORS.-

Specification forming part of Letters Patent No. 39,724, dated September l, 1863.

To all whom t may concern:

Be it known that I, GUs'rAE A. ERICKSON, of Sweed Bend, in the county of Webster and State of Iowa, have invented a certain new and useful Improvement in Oultivators; and I do hereby declare the following to be a full and exact description of the same, reference being had to the accompanying drawings, making part of this specification, in which- Figure lis a plan or top view of my improved cultivator. Fig. 2 is a rear end elevation of the same. Fig. 3 is a vertical section of the same at fr a', Fig. 2.

Similar letters of reference indicate correspondin g parts in the several views.

Thisinvention consists in the application of an improved vibrating harrow to a cultivator, in manner ,substantially as hereinafter described.

To enable others skilled in the art to which myV invention appertains to fully understand and use the same, I will proceed to describe it.

Ais the main frame of the implement, in whichare secured any desired number of cultivator-teeth, a a a.

B represents the main driving-wheel, to the inder side of which a concentric cogged rim, B', is rigidly attached. 4

C is a pinion supported upon a standard, D, and ruiming on a vertical crank-shaft, c. The cogged rim B' of the wheel B, gearing withthe pinion C, communicates a lateral vibratory motion to the harron7 E through the medium of a connecting-rod, F, which is jointed at its respective ends to the lowerend of the vertical crank-shaft c and to the harrow E.

G may represent a brace, of iron or other suitable material, extending from the front part of the frame A to the standard D, to the front ot1 which it is attached, near its upper edge, for the purpose of imparting strength and rigidity thereto.

I represents guide-straps, by which the vibrating barrow E may be secured and held in position at the rear edge of the frame A, said straps being so formed as to permit the free endwise play of the harrow while the machine is in motion.

J represents a guide-rod, 4which serves as an additional supporting and guidingrnedinm for the barrow, and works through one or more lugs K, which may be secured to the under rear part of the frame in any convenient. way.

L representsarollerattached tothelowrfr end ofan adjustable forked stem, M, said stern bei ng adjusted at any desired height in the bracket by 1n cans of a clam p-screw, 0, or otherwise, for the purpose of elevating the teeth ofthe harrow and cultivator from the ground when the machine is passing over iiclds or places not to be tilled.

P Q represent respectively the handles and tongue of the machine, which may be of common construction.

Having thus described my invention, what I claim therein asuew, and desire to secure by Letters Patent, is

The described combination of a vibrating harrow, E, with a cultivator, the w hole being constructed and arranged to operate in the manner and for the purposes herein specified.

GUSTAF A. ERICKSON.

Witnesses:

G. J. A. ERIosoN, THOMAS OLsEN. 

